De Guzman, G. G. (1977). The use of alphabeticall listed frame in stratified sampling design [microform]. Photoduplication Service. University of the Philippines Library.
芝加哥风格引文De Guzman, Generoso G. The Use of Alphabeticall Listed Frame in Stratified Sampling Design [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
MLA引文De Guzman, Generoso G. The Use of Alphabeticall Listed Frame in Stratified Sampling Design [microform]. Photoduplication Service. University of the Philippines Library, 1977.
警告：这些引文格式不一定是100％准确.